diff --git a/common/schema.h b/common/schema.h
index 01c7c8097..429552af5 100644
--- a/common/schema.h
+++ b/common/schema.h
@@ -199,6 +199,7 @@ namespace swss {
 #define COUNTERS_ROUTE_TO_PATTERN_MAP       "COUNTERS_ROUTE_TO_PATTERN_MAP"
 #define COUNTERS_FABRIC_QUEUE_NAME_MAP      "COUNTERS_FABRIC_QUEUE_NAME_MAP"
 #define COUNTERS_FABRIC_PORT_NAME_MAP       "COUNTERS_FABRIC_PORT_NAME_MAP"
+#define COUNTERS_TWAMP_SESSION_NAME_MAP     "COUNTERS_TWAMP_SESSION_NAME_MAP"
 
 #define COUNTERS_NAT_TABLE              "COUNTERS_NAT"
 #define COUNTERS_NAPT_TABLE             "COUNTERS_NAPT"
@@ -424,6 +425,8 @@ namespace swss {
 
 #define CFG_CHASSIS_MODULE_TABLE                    "CHASSIS_MODULE"
 
+#define CFG_TWAMP_SESSION_TABLE_NAME                "TWAMP_SESSION"
+
 #define CFG_DHCP_TABLE                              "DHCP_RELAY"
 
 #define CFG_FLOW_COUNTER_ROUTE_PATTERN_TABLE_NAME   "FLOW_COUNTER_ROUTE_PATTERN"
@@ -477,6 +480,8 @@ namespace swss {
 
 #define STATE_SYSTEM_NEIGH_TABLE_NAME               "SYSTEM_NEIGH_TABLE"
 
+#define STATE_TWAMP_SESSION_TABLE_NAME              "TWAMP_SESSION_TABLE"
+
 #define STATE_MACSEC_PORT_TABLE_NAME        "MACSEC_PORT_TABLE"
 #define STATE_MACSEC_INGRESS_SC_TABLE_NAME  "MACSEC_INGRESS_SC_TABLE"
 #define STATE_MACSEC_INGRESS_SA_TABLE_NAME  "MACSEC_INGRESS_SA_TABLE"